GNU Radio 2.x: gr_iir_filter_ffd.h Source File

Main Page | Modules | Namespace List | Class Hierarchy | Compound List | File List | Namespace Members | Compound Members | File Members

# gr_iir_filter_ffd.h

Go to the documentation of this file.

    00001 /* -*- c++ -*- */
    00002 /*
    00003  * Copyright 2004 Free Software Foundation, Inc.
    00004  *
    00005  * This file is part of GNU Radio
    00006  *
    00007  * GNU Radio is free software; you can redistribute it and/or modify
    00008  * it under the terms of the GNU General Public License as published by
    00009  * the Free Software Foundation; either version 2, or (at your option)
    00010  * any later version.
    00011  *
    00012  * GNU Radio is distributed in the hope that it will be useful,
    00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00015  * GNU General Public License for more details.
    00016  *
    00017  * You should have received a copy of the GNU General Public License
    00018  * along with GNU Radio; see the file COPYING.  If not, write to
    00019  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00020  * Boston, MA 02111-1307, USA.
    00021  */
    00022
    00023 #ifndef INCLUDED_GR_IIR_FILTER_FFD_H
    00024 #define INCLUDED_GR_IIR_FILTER_FFD_H
    00025
    00026 #include <gr_sync_block.h>
    00027 #include <gri_iir.h>
    00028 #include <stdexcept>
    00029
    00030 class gr_iir_filter_ffd;
    00031 typedef boost::shared_ptr<gr_iir_filter_ffd> gr_iir_filter_ffd_sptr;
    00032 gr_iir_filter_ffd_sptr
    00033 gr_make_iir_filter_ffd (const std::vector<double> &fftaps,
    00034                         const std::vector<double> &fbtaps) throw (std::invalid_argument);
    00035
    00060 class gr_iir_filter_ffd : public gr_sync_block
    00061 {
    00062  private:
    00063   friend gr_iir_filter_ffd_sptr
    00064   gr_make_iir_filter_ffd (const std::vector<double> &fftaps,
    00065                           const std::vector<double> &fbtaps) throw (std::invalid_argument);
    00066
    00067   gri_iir<float,float,double>           d_iir;
    00068   std::vector<double>                   d_new_fftaps;
    00069   std::vector<double>                   d_new_fbtaps;
    00070   bool                                  d_updated;
    00071
    00075   gr_iir_filter_ffd (const std::vector<double> &fftaps,
    00076                      const std::vector<double> &fbtaps) throw (std::invalid_argument);
    00077
    00078  public:
    00079   ~gr_iir_filter_ffd ();
    00080
    00081   void set_taps (const std::vector<double> &fftaps,
    00082                  const std::vector<double> &fbtaps) throw (std::invalid_argument);
    00083
    00084   int work (int noutput_items,
    00085             gr_vector_const_void_star &input_items,
    00086             gr_vector_void_star &output_items);
    00087 };
    00088
    00089 #endif